1/* 2 * vint64ops.h - operations on 'vint64' values 3 * 4 * Written by Juergen Perlinger (perlinger@ntp.org) for the NTP project. 5 * The contents of 'html/copyright.html' apply. 6 * ---------------------------------------------------------------------- 7 * This is an attempt to get the vint64 calculations stuff centralised. 8 */ 9#ifndef VINT64OPS_H 10#define VINT64OPS_H 11 12/* signed/unsigned compare. returns 1/0/-1 if lhs >/=/< rhs */ 13extern int icmpv64(const vint64 * lhs, const vint64 * rhs); 14extern int ucmpv64(const vint64 * lhs, const vint64 * rhs); 15 16/* add / subtract */ 17extern vint64 addv64(const vint64 *lhs, const vint64 *rhs); 18extern vint64 addv64i32(const vint64 * lhs, int32_t rhs); 19extern vint64 addv64u32(const vint64 * lhs, uint32_t rhs); 20 21extern vint64 subv64(const vint64 *lhs, const vint64 *rhs); 22extern vint64 subv64i32(const vint64 * lhs, int32_t rhs); 23extern vint64 subv64u32(const vint64 * lhs, uint32_t rhs); 24 25/* parsing. works like strtoul() or strtoull() */ 26extern vint64 strtouv64(const char * begp, char ** endp, int base); 27 28#endif /*!defined(VINT64OPS_H)*/ 29